Why does PSE archery list two different IBO speeds for the same bow?
In the PSE archery catalogue why do they put two different IBO speed ratings on the same bow which one is correct? They do this with all of there bows. But isn't IBO spec for a 350 grain arrow at 70 LB draw weight and a 30" draw length? If these are the specs for IBO how can the speeds be different for the same bow?

• Watches Buying Guide
• Toys Buying Guide
• Shoes Buying Guide
• Pet Supplies Buying Guide
• Games Buying Guide
• Jewelry Buying Guide
• Hand Tools Buying Guide
• Furniture Buying Guide
• Clothing Buying Guide
• Books Buying Guide